First Author | Pobezinskaya YL | Year | 2008 |
Journal | Nat Immunol | Volume | 9 |
Issue | 9 | Pages | 1047-54 |
PubMed ID | 18641653 | Mgi Jnum | J:139031 |
Mgi Id | MGI:3807126 | Doi | 10.1038/ni.1639 |
Citation | Pobezinskaya YL, et al. (2008) The function of TRADD in signaling through tumor necrosis factor receptor 1 and TRIF-dependent Toll-like receptors. Nat Immunol 9(9):1047-54 |
abstractText | The physiological function of the adaptor protein TRADD remains unclear because of the unavailability of a TRADD-deficient animal model. By generating TRADD-deficient mice, we found here that TRADD serves an important function in tumor necrosis factor receptor 1 (TNFR1) signaling by orchestrating the formation of TNFR1 signaling complexes. TRADD was essential for TNFR1 signaling in mouse embryonic fibroblasts but was partially dispensable in macrophages; abundant expression of the adaptor RIP in macrophages may have allowed some transmission of TNFR1 signals in the absence of TRADD. Although morphologically normal, TRADD-deficient mice were resistant to toxicity induced by TNF, lipopolysaccharide and polyinosinic-polycytidylic acid. TRADD was also required for TRIF-dependent Toll-like receptor signaling in mouse embryonic fibroblasts but not macrophages. Our findings definitively establish the biological function of TRADD in TNF signaling. |